Arthur Miller, author of The Crucible, believes that people abuse their political power when O someone is running for office
O governments are corrupt
O people are wrongly accused
O there is mass hysteria

with whom will you be coming to the party? this is written correctly.

remember, the goal of an adjective clause is to add more information to a noun or a pronoun. as you can see from the examples above, you can add information by including a longer adjective clause or tighten up a sentence by turning the adjective clause into an adjective phrase.